Envelope



Jan. 3, 1928. 1,655,242 5. D. RICH ENVELOPE Filed April 26, 1927 Fig. 4L.

Wm SAM DURANT RICH i OLMJ/S Patented 3,- 1928 i UNITED STATES 1,655,242" PATENT OFFICE.

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Application iled April 26, 1927. Serial No. 186,782.

strument or by subjecting it to the action of steam. Loss of much money, important documents, and other valuables has frequently been occasioned by reason of these defects, to say nothing of the prying into the contents of such envelopes by the curi- 'ously inclined. In manybusiness establishments, where large quantities of mail are sent out a machine is employed to seal the envelopes. Defectivesealing is quite common with such machines. The objectof the present invention is to provide anenvelope in which the surreptitious opening and resealing thereof is rendered so diflicult as to discourage the attempt. A further object or result of the invention is to render the perfect sealing thereof more certain of accom plishment when large numbers are to be 2 sealed witha machine. r

The invention is embodied in the example herein shown and described, the features of novelty being finally claimed.

In the accompanying drawing forming part hereof-- ,1

Figure 1 is a' view in elevation, partly broken out, looking at the back of the envel ope with the closing flap raised. Fig. 2 is a section on the line IIII Fig. l. Figure 3 is an elevation of the rear side of the supplementary part before incorporation with the body of the envelopeas shown in- Fig. 1. v

Fig. 4 is a. similar view of the forward side of the element shown in Fig. 3.

In the views where like characters of reference designate corresponding parts, 5 designates the body of the envelope which can be of'any usualform or size, with the usual end'and bottom flaps, and with the usual closing flap 5 having gum or mucilage at 5* thereon for sealing preparatory to mailing.

The supplementing element, before referred to, includes, in the instance shown, a rectangular portion 6, which can be of varied depth, with a substantially triangular portion 6 along its upper edge and of a form co-dimensiona-l with that of the closing flap of the envelope body. The rear side of the supplementing element is coated with mucilage, and the forward side with mucilage v material.

upon the triangular portion 6 only or above the folding line 00-42 of said supplementing. element. The paper or material of the supplemental part is preferably of the long fiber varlety, not especially tough but so as to be easily shredded, divided, broken or disfigured when an attempt is made to raise the sealed flap from the body. In equipping'the envelope with the supplementing part the rectangular portion 6 is inserted into or otherwise combined with the body portion of the en velope so that said gummed portion lies at the forward side of the envelope thereby leaving the pocket thereof free from gum, the gummed triangular portion at that side of said supplemental portion being adherently attached tothe rear side of the envelope as indicated in Figs. 1 and 2.

When a letter, circular or other article is to be inclosed in the envelope for transmission both the gum of the body flap and the triangular part are entirely moistened preparatory to sealing, hence a close connection of the body flap with the triangular .part eifected at all points. Upon such a sealing the removal of the body flap alone is rendered extremely diflicult. The envelope is particularly advantageous for use in connection with a moistening and sealing machine because of the prominent and extensive gummed surface it, presents for molstening.

The forms and size of the parts can be changed and features omitted without departing from the gist of the invention as claime for example the'rectangular portion can be deeper than shown or not so deep and gum on the body fiap can be omitted. It will be understood, of course, that the term gum includes any adherent What claim is: I

1. An envelope of the kind described including a supplemental member adherently attached directly to the opposite sides of the rear wall of the envelope f 2. An envelope of the kind described including a folded supplemental member having one of its portions extending into the pocket of the envelope and the other adherently applied directly to the outer side of the rear wall of the envelope.

3. An envelope of the kind described including a folded supplemental member having one of its portions extending into the pocket of the envelope and the other adsurface of the last named portion being gummed.

5 4. An envelope of the ln'nd described including a folded supplemental. member having one of its portions extending into the pocket of the envelope, the forward side thereof being ungummed, and its other por tion adherently' directly attached to the outer surface of the rear \vall'of the envelope. 5. An envelope of the kind described including an inclosing flap and a folded -sup-' plemental member having one of its portions 5 extending into the pocket of the envelope,

and the other of its portions adherently attached directly to the 'outer face of the rear wall of the envelope, the exposed surv face of said adherently attached ortion and the enclosing "flap of the -enve ope being gumm'ed.

'16. An envelopedof the described inon agumme mcosm 'a an asuple tal member adhereftly zittached rectly to the outer face of the rear wall of the envelope, to which the said gummed flap is applied to seal the envelope;

7. An envelope of the kind described includin an inclosing' flap, and a supplementa member co-dimensiona'l with the flap adherently attached directly to the outer face of the rear wall of the envelope, said vsupplemental memberbeing gummed on its exposed'face for effecting the adherent attachment of the closing flap thereto.

- SAM DURANT RICH. 

